A Scanning Tunneling Microscopy Study of Ultrathin Film Rutile TiO2(110) Supported on W(100)-O(2 脳 1)

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• 作者：Chi L. Pang ; David C. Grinter ; Jai Matharu ; Geoff Thornton
• 刊名：Journal of Physical Chemistry C
• 出版年：2013
• 出版时间：December 5, 2013
• 年：2013
• 卷：117
• 期：48
• 页码：25622-25627
• 全文大小：486K
• 年卷期：v.117,no.48(December 5, 2013)
• ISSN：1932-7455

文摘

Ultrathin films of rutile TiO₂(110) have been grown on a W(100)-O(2 脳 1) surface and characterized with a combination of scanning tunneling microscopy (STM) and low-energy electron diffraction (LEED). LEED shows the presence of two orthogonal rotational domains of rutile TiO₂(110). In line with this, STM images reveal that the rutile TiO₂ grows as discrete islands and can be aligned in either of the principal directions of the underlying substrate W(100)-O(2 脳 1). High-resolution STM images reveal atomic-scale rows and the presence of point defects on the rutile islands that are characteristic of the native rutile TiO₂(110)-(1 脳 1).